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1

Escuela Técnica Superior de Ingeniería de Telecomunicación, Universidad de Málaga, Málaga, Spain

2

Instituto de Tecnologías Físicas y de la Información, Consejo Superior de Investigaciones Científicas, Madrid, Spain





*

Author to whom correspondence should be addressed.



Abstract This paper analyzes the cryptographic security of J3Gen, a promising pseudo random number generator for low-cost passive Radio Frequency Identification RFID tags. Although J3Gen has been shown to fulfill the randomness criteria set by the EPCglobal Gen2 standard and is intended for security applications, we describe here two cryptanalytic attacks that question its security claims: i a probabilistic attack based on solving linear equation systems; and ii a deterministic attack based on the decimation of the output sequence. Numerical results, supported by simulations, show that for the specific recommended values of the configurable parameters, a low number of intercepted output bits are enough to break J3Gen. We then make some recommendations that address these issues. View Full-Text

Keywords: pseudo random number generators; security; cryptanalytic attack; Radio Frequency Identification; EPCglobal Gen2 pseudo random number generators; security; cryptanalytic attack; Radio Frequency Identification; EPCglobal Gen2





Autor: Alberto Peinado 1, Jorge Munilla 1,* and Amparo Fúster-Sabater 2

Fuente: http://mdpi.com/



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